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Disable inherit rotation can be stable if also disabling reflection.

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This commit is contained in:
NathanSweet 2016-10-10 15:50:57 +02:00
parent 6ef7cf3ba4
commit eb1e8e7942
1 changed files with 24 additions and 8 deletions
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32
spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/Bone.java
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@ -154,20 +154,36 @@ public class Bone implements Updatable {
break;
}
case noRotationOrReflection: {
if (pa * pd - pb * pc < 0) {
pb = -pb;
pd = -pd;
float psx = (float)Math.sqrt(pa * pa + pc * pc), psy, prx;
if (psx > 0.0001f) {
psy = Math.abs((pa * pd - pb * pc) / psx);
prx = atan2(pc, pa) * radDeg;
} else {
psx = 0;
psy = (float)Math.sqrt(pb * pb + pd * pd);
prx = 90 - atan2(pd, pb) * radDeg;
}
rotation -= atan2(pc, pa) * radDeg;
pa = cosDeg(prx) * psx;
pb = cosDeg(prx + 90) * psy;
pc = sinDeg(prx) * psx;
pd = sinDeg(prx + 90) * psy;
float rotationY = rotation + 90 + shearY;
float la = cosDeg(rotation + shearX) * scaleX;
float lb = cosDeg(rotationY) * scaleY;
float lc = sinDeg(rotation + shearX) * scaleX;
float ld = sinDeg(rotationY) * scaleY;
a = pa * la + pb * lc;
b = pa * lb + pb * ld;
c = pc * la + pd * lc;
d = pc * lb + pd * ld;
float za = pa * la + pb * lc;
float zb = pa * lb + pb * ld;
float zc = pc * la + pd * lc;
float zd = pc * lb + pd * ld;
pa = cosDeg(-prx);
pb = cosDeg(90 - prx);
pc = sinDeg(-prx);
pd = sinDeg(90 - prx);
a = za * pa + zb * pc;
b = za * pb + zb * pd;
c = zc * pa + zd * pc;
d = zc * pb + zd * pd;
break;
}
case noScale: